http://dspace.centre-univ-mila.dz/jspui/handle/123456789/1988 Sat, 04 Apr 2026 15:56:02 GMT 2026-04-04T15:56:02Z http://dspace.centre-univ-mila.dz/jspui/handle/123456789/2387 Titre: DECENT HOUSING FOR ALL. THE CASE OF THE ALGERIAN CITY Auteur(s): Roufia, Abada / Amirouche,Bouchelaghem Résumé: "Decent housing for all" this sentence carries several aspects which can be social, environmental, economic and sometimes even technical. Decent housing currently represents a major concern for which the Algerian authorities pay particular attention. At the same time, and in the face of this urgent demand for housing in lgeria, the city is neglected; entire neighborhoods do not have the necessary infrastructure and thus live in a most alarming sanitary situation, cohabiting with luxurious neighborhoods, where comfort in all its senses is present. For Algeria and for decades the ZHUNs (New Urban Habitat Zone) embody segregation and above all a stereotyped mass production, facing a spiral of social demand which in turn is fed by an exponential emographic growth. In reality, the problem lies mainly in the difficulty of balancing demand/supply, economic development/demographic growth. In this case, the problem of housing demand is still relevant and difficult to solve. Sat, 01 Jan 2022 00:00:00 GMT http://dspace.centre-univ-mila.dz/jspui/handle/123456789/2387 2022-01-01T00:00:00Z http://dspace.centre-univ-mila.dz/jspui/handle/123456789/2386 Titre: ACADEMIC GOVERNANCE AT THE UNIVERSITY SALAH BOUBNIDER CONSTANTINE 3 Auteur(s): Roufia, abada // Amirouche Bouchelaghem // Soumia Bentahar Résumé: University governance seems to have undergone many changes, often associated with economic and/or political crises. Until the 1960s, universities were mostly "ivory towers" run by academics and designed for a specific social category, the elite. In the case of Algeria, it is the government that intervenes in the financing and management of higher education institutions. The idea of reforming the governance of academic institutions is not a passing fad or a project linked to a power process or a party or union agenda. This idea has emerged slowly, with the deepening disintegration of the university system from within and the current emergence of a global transformation movement at the top of various institutions. This work aims to present the main characteristics as well as the strategy of the reform of Higher Education in Algeria. Sun, 01 Jan 2023 00:00:00 GMT http://dspace.centre-univ-mila.dz/jspui/handle/123456789/2386 2023-01-01T00:00:00Z http://dspace.centre-univ-mila.dz/jspui/handle/123456789/1991 Titre: Thermohydraulic and second law analyses during the cooling of an electronic device mounted in an open cavity equipped with magnetic nanofluid, magnetic field inducer, and porous media: A two-phase numerical investigation Auteur(s): Farid, Berrahil Résumé: Electronic component cooling is one of the most critical barriers to system development in terms of being faster, smaller, and more reliable. Therefore, thermal management is necessary to control the large amount of heat that is produced. In the present study, a highly effective hybrid method is recommended to improve the thermal performance of an electronic device's cooling. A two-phase model is used in a three-dimensional numerical study to accurately examine the heat transfer characteristics, pumping power, and entropy production of Fe3O4/water nanofluid flow affected by a magnetic field inducer and a porous medium. Validation with the available data and mesh independence are performed to shed light on the accuracy of the presented model. The outcomes reveal that the combined technique improves both convection and conduction phenomena and decreases the irreversibility in the system. In addition, the data indicates that there is an optimum velocity for each magnetic field strength in order to maximize the cooling performance. In comparison with the circumstance of pure water and no magnetic field and porous medium, the heat transfer enhancement can be improved by 2.3 times when employing these conditions simultaneously: a magnetic field of 500G, Reynolds number of 500, a porosity of 0.85, and a volume fraction of 2%. Finally, the proposed method shows only a slight increase in pressure drop since no additional obstacles were used. Thu, 01 Dec 2022 00:00:00 GMT http://dspace.centre-univ-mila.dz/jspui/handle/123456789/1991 2022-12-01T00:00:00Z http://dspace.centre-univ-mila.dz/jspui/handle/123456789/1990 Titre: MHD mixed convection and irreversibility analysis of hybrid nanofluids in a partially heated lid-driven cavity chamfered from the bottom side Auteur(s): Farid, Berrahil Résumé: In this research, magneto-convection flow in the cavity problem driven by the lid is examined using computational fluid dynamics (CFD) techniques. To this effect, the cavity considered in this numerical study has two rounded corners and is partially heated from the bottom side and filled with Al2O3-Cu/water hybrid nanofluid (HBNF). Accordingly, a solver based on C++ object-oriented language has been developed under OpenFOAM® libraries to solve the mathematical governing equations. The numerical findings are thoroughly validated with other studies. To this end, different parameters analysis is adopted, which consists of Richardson numbers (0.1 ≤ Ri ≤ 10), Hartmann numbers (0 ≤ Ha ≤ 100), magnetic field angle (0° ≤ γ ≤ 90°), solid volume fraction (0 ≤ ϕ ≤ 0.04), composition ratio (25 % ≤ Cu, Al2O3 ≤ 75%), corners radius (0.01 ≤ R ≤ 0.3). This analysis is achieved by exploring streamlines, isotherms, total entropy generation, local and average Nusselt numbers. After the data analyses, the findings indicated that the magnetic field orientation strongly affects the hybrid nanofluid flow and temperature distribution. In other words, at Ri = 10, Applying a magnetic field perpendicular to the gravity force leads to better heat transfer. Furthermore, decreasing corners radius enhances heat transmission and reduces irreversibility. The composition ratio (Al2O3 75%, Cu 25%) gave the highest values of the mean Nusselt Number (Num) and the total entropy production (Sg). Moreover, the heat transfer rate and irreversibility decrease with increasing Ha and decreasing Ri. Finally, suspending nanoparticles (NPs) in the base fluid improves heat transfer and increases irreversibility except for Ri = 10 at Ha = 100 and Ri = 1 at Ha = 50, where the opposite behavior has been observed. Tue, 01 Mar 2022 00:00:00 GMT http://dspace.centre-univ-mila.dz/jspui/handle/123456789/1990 2022-03-01T00:00:00Z